Wheel-hub



GJLSKARIN'.v

(No Model.)V

WHEEL HUB.

Patented June 7, 1,898.

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'UNiTED STATESF GUSTAF A. SKARIN, OF

PATENT Ormes.

BUFFALO, NEW YORK.

WHEEL-HUB.

SPECIFICATION forrning part of Letters Patent No. 605,208, dated `J' une 7, 1898. Application' nea July 1e, 1897'. semi No. 644,763.y (No man.)

l VTo a/ZZ whom it may conccrm' Be it known that I, GUsrAFgAZ SKARIN, a citizen of the United States, residing at Buf-` falo, in the county of Erie and State of New York, have invented a new and useful Improvem'ent in Wheel-Hubs, of which the following is a specification.

This invention relates to Wheel-l1ubs, and more especially to hubs for bicycle-wheels, in which the barrel or shell is made from metal tubing. j

My invention has the objects to improve the means for fastening the spokes to the tubular barrel or shell and also to simplify the means of securing the sprocket-wheel thereto.

In the accompanying drawings, Figure lis a longitudinal section of a bicycle-wheel/hub provided with `my improvements. Fig. 2 is a transverse section in line 2 2, Fig. l. Fig. 3 is a fragmentary transverse section, on an enlarged scale, in line 3 3, Fig. l, showing the spoke-fastening. Fig. 4: is a fragmentary inside vieW of the same. Fig. 5 is a perspective view of one of `the spoke-fastening buttons or nipples. Fig. 6 is a detached sectional elevation/H of the Abutton or nipple locking ring. Fig. 7 is a detached sectional view of the sprocket-wheel. Fig. 8 isa fragmentary longitudinal section of the hub-barrel and-spoke-fastenings. Fig. 9 is a detached fragmentary sectional elevation of the hubbarrel.

Like letters of reference refer to like parts in the several "figures v A is the axle, provided Vwithv externallyscrew-threaded ends, and `B is 'the tubular barrel or shell, which is preferably cylindrical throughout its whole length'. l

O C represent the internally-screW-threaded bearing cones or races,lwhich arernounted on the externally-threaded ends of the axle, CZ d the annular rows of balls, bearing with their outer sides against the cones,`and E E the bearing cups or races, which bear against the inner sides of the rows of balls and which are :mounted in the ends of the barrch The bearing-cup E is preferably secured into the barrel by a driving fit, While the other bearing-cup E is secured to the barrel by an external screuthread e, formed on the inner portion of this cup and engaging with an internal Vscrew-thread c in the adjacent end of the barrel,

F represents a sprocket-Wheel mounted on the outer side of that end of the barrel in which the bearing-cup E is secured. The sprocket-wheel is provided at its outer end with an inwardly-projecting liange f, form-l ing an inwardly-facing shoulder, which bears against' the adjacent endpof the barrel.

g represents an outwardly-projecting annular flange which is formed on the outer end of the bearing-cup E and which bears against the outer side of the sprocket-wheel. Upon screwing the lbearing-cup E inward tightly its flange g presses the flange f of the sprocket-wheel rrnly against the outer end of the barrel, thereby securing the sprocket-wheel i to the barrel. In order to positively prevent the sprocket-Wheel from turning on the barrel, the shoulder on the flange of the sp rocketwheel is provided with an annular row of radial serrations or teeth f', which interlock on the lower end of the neck and forming two outwardly-facing shoulders 024 on opposite sides of the neck. The longitudinal sides i5 of the cross-piece are straight and parallel, and the ends 6 thereof are rounded concentrically and on the saine radius as the head of the button. v

The spokes on each end of the hub are arranged in pairs, the spokes of each pair crossing each other at their adjacent inner ends and extending tangentially outward in opposite directions. Each of the buttons serves to fasten a pair of spokes to the barrel and is provided with two eyes or openings 7`j,whicl1 into each of which the cylindrical head of one 2 l 605,2oe

extend from the outer to the inner side of the button and diagonally in opposite directions. These eyes or openings receive the inner ends of a pair of spokes and are provided with enlargements at their inner ends,forming shoulders j j', against which the heads h at the inner ends of the spokes bear.

K K represent two annular sets of cylindrical openings or sockets which are formed in the barrel near opposite ends thereof Aand of the buttons is fitted.

L L represent two locking rings or washers whereby the spoke-buttons are held in the openings of the barrel and which are iitted against the inner side of the barrel in line with the two sets of button-openings. These rings are equal in thickness to the length of the neck on the buttons, and each ring is provided with a set of elongated openings or slots Z, which register with the openings in the barrel. These slots are of the same shape as the cross-pieces on the spoke-buttons, the longitudinal sides Z thereof being straight and parallel, while the ends Z2 thereof are curved concentric with the cross-pieces and heads of the buttons. After the spokes have been attached to the buttons each of the latter is placed with its cross-bar in alinement with a slot in the locking-ring, after which the button is passed through the adjacent opening and slot of the barrel and ring until the head of the button is arranged in the opening of the barrel and rests with its shoulder on the outer side of the locking-ring and the cross-piece has passed through the slot in the cross-piece and beyond the inner side thereof. Upon turning the button one-quarter 0f a rotation when in this position the ends of its cross-piece are carried underneath the locking-ring and the cross-piece bridges the narrow portion of the slot, as shown in Figs. 1, Il, and 7. After the button has been turned into this position the outer ends of the spokes connected therewith are fastened to the rirn of the wheel, thereby preventing the button from becoming detached from the barrel. The spoke-head is preferably convex on its' outer side, and it is of such height that the marginal outer edge of the head is flush with the outer side of the barrel, thereby preventing dirt from lodging on the surface of the barrel and permitting the same to be cleaned more easily than when the spokeat taching nipples or buttons project a considerable distance from the barrel.

In order to prevent any dirt or dust which may pass between the buttons, spokes, barrel, and ring from reaching the bearings, two

6o -dust-guards M M are provided7 which cover the inner ends of the slots and the spoke-butm tons. Each of these guards has the form of an annular outwardly-opening trough and consists of a ring m, arranged opposite one set of spoke-buttons, and two annular flanges m' the locking-rings areirst placed in line with the openings in the barrel and the dust-guards are placed inside of the locking-rings, after which the spoke-buttons are inserted from the outside and secured in place.

I claim as my inventionl. The combination with the barrel,`of a sprocket-wheel mounted on said barrel and provided with an inwardly-projecting annular iiange which bears against the end of the barrel, and a bearingcup connected with the barrel and provided withV an outwardly-pro jecting ange which bears against the outer end of the sprocket-wheel, substantially as set forth. v

2. The combination with the barrel provided at one end with serrations, of a sprocketwheel mounted on said barrel and provided with an internal annular flange having serrations which engage with the serrations of the barrel, and a bearing-cup having a screw connection with the barrel and provided with an external annular flange which bears against the outer end of the sprocketwheel, substantially as set forth.

3. The combination with the hub-barrel having an opening in its wall, of a lockingwasher arranged in the barrel and having an oblong opening which is narrower than said barrel-opening and which coincides therewith, and a spoke-fastening button rotatably seated in said coinciding openings and having an oblong inner portion which is constructed to pass through the oblong opening of the lock# ing-washer when turned in line therewith and which interlocks with the washer when turned out of line with said oblong opening, substantially as set forth.

4t. The combination with the hub-barrel provided with openings, of spoke-fastening buttons arranged in said openings and connected with spokes, each of said buttons being providedl with a contracted portion forming inwardly and outwardly facing shoulders, and a. locking device arranged in said barrel and engaging with said buttons between the shouln ders thereof, substantially as set forth.

5. The combination with the hulrbarrel provided with circular openings, of a lockingring arranged in said barrel and provided with slots arranged in line with said openings, and spoke-fastening buttons each of which is provided with a circularhead which iits into one of said openings, a cross -bar bearing against the inner side of the locking-ring onv opposite sides of the adjacent slot and a contracted neck arranged in said slot and confnecting the head and cross-piece, substantially as set forth.

6. The combination with the hub-barrel proL vided with openings, of spoke-fastening butsite sidesof the buttons, substantially as set `tons arranged in said openingsfa 10c-king" fortl. ring arranged in the barrel and engaging with Witness myhand this 12th day of Ju1y,l897.

the inner ends of the buttons, and a dust- GUSTAF A. SKARIN. 5 guard consisting of aring and two outwardlyi i Witnesses:

projecting annular flanges which bear against THEO. L. POPP,

the inner side of the 1ooking-ring on oppo- E. R. DEAN. 

